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BOSTON MARATHON 2023

Rachel Brown

Bib: 25859•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
33:11
Rank: #25136
Start → 5K
33:11 | 10:41/mi
10K· 6.21 mi
1:06:56
Rank: #25212 (-76)
5K → 10K
33:45 | 10:52/mi
15K· 9.32 mi
1:40:03
Rank: #25047 (+165)
10K → 15K
33:07 | 10:40/mi
20K· 12.43 mi
2:13:34
Rank: #24847 (+200)
15K → 20K
33:31 | 10:47/mi
Half· 13.11 mi
2:21:01
Rank: #24844 (+3)
20K → Half
7:27 | 10:55/mi
25K· 15.53 mi
2:48:28
Rank: #24770 (+74)
Half → 25K
27:27 | 11:19/mi
30K· 18.64 mi
3:25:44
Rank: #24737 (+33)
25K → 30K
37:16 | 12:00/mi
20M
3:41:33
Rank: #24652 (+85)
30K → 20M
15:49 | 11:38/mi
21M
3:53:46
Rank: #24577 (+75)
20M → 21M
12:13 | 12:13/mi
35K· 21.75 mi
4:01:50
Rank: #24521 (+56)
21M → 35K
8:04 | 10:47/mi
23M
4:15:46
Rank: #24409 (+112)
35K → 23M
13:56 | 11:08/mi
24M
4:27:21
Rank: #24408 (+1)
23M → 24M
11:35 | 11:35/mi
40K· 24.85 mi
4:37:22
Rank: #24385 (+23)
24M → 40K
10:01 | 11:43/mi
25.2M
4:41:28
Rank: #24361 (+24)
40K → 25.2M
4:06 | 11:53/mi
Finish· 26.22 mi
4:52:56
Rank: #24375 (-14)
25.2M → Finish
11:28 | 11:15/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:21:01
Pace10:45 /mi
2nd Half
Distance13.11 mi
Time2:31:55
Pace11:35 /mi
📊Positive Split: 7.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:1733:1110:4133:11
10:41
-
10K
6.21 mi12:29:021:06:5610:4633:45
10:52
+0:11
15K
9.32 mi13:02:091:40:0310:4433:07
10:40
-0:12
20K
12.43 mi13:35:402:13:3410:4533:31
10:47
+0:07
Half
13.11 mi13:43:072:21:0110:457:27
10:55
+0:08
25K
15.53 mi14:10:342:48:2810:5127:27
11:19
+0:24
30K
18.64 mi14:47:503:25:4411:0237:16
12:00
+0:41
20M
20.00 mi15:03:393:41:3311:0515:49
11:38
-0:22
21M
21.00 mi15:15:523:53:4611:0812:13
12:13
+0:35
35K
21.75 mi15:23:564:01:5011:078:04
10:47
-1:26
23M
23.00 mi15:37:524:15:4611:0713:56
11:08
+0:21
24M
24.00 mi15:49:274:27:2111:0811:35
11:35
+0:27
40K
24.85 mi15:59:284:37:2211:1010:01
11:43
+0:08
25.2M
25.20 mi16:03:344:41:2811:104:06
11:53
+0:10
Finish
26.22 mi16:15:024:52:5611:1111:28
11:15
-0:38

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

10:40 /mi

Average Pace

11:11 /mi

Slowest Pace

12:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:59:21

82% of race

Time at Steady Pace

53:35

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 11:10 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:55:1733:1110:4133:11
10:41
#25136
10K
6.21 mi12:29:021:06:5610:4633:45
10:52
#25212
15K
9.32 mi13:02:091:40:0310:4433:07
10:40
#25047
20K
12.43 mi13:35:402:13:3410:4533:31
10:47
#24847
Half
13.11 mi13:43:072:21:0110:457:27
10:55
#24844
25K
15.53 mi14:10:342:48:2810:5127:27
11:19
#24770
30K
18.64 mi14:47:503:25:4411:0237:16
12:00
#24737
20M
20.00 mi15:03:393:41:3311:0515:49
11:38
#24652
21M
21.00 mi15:15:523:53:4611:0812:13
12:13
#24577
35K
21.75 mi15:23:564:01:5011:078:04
10:47
#24521
23M
23.00 mi15:37:524:15:4611:0713:56
11:08
#24409
24M
24.00 mi15:49:274:27:2111:0811:35
11:35
#24408
40K
24.85 mi15:59:284:37:2211:1010:01
11:43
#24385
25.2M
25.20 mi16:03:344:41:2811:104:06
11:53
#24361
Finish
26.22 mi16:15:024:52:5611:1111:28
11:15
#24375
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25136105111051124747(Top 93%)10317(Top 90%)10317(Top 211%)
10K6.21 mi3.10 mi25212-7610547-3610547-3625287(Top 95%)10601(Top 93%)10601(Top 217%)
15K9.32 mi3.11 mi25047+16510463+8410463+8424747(Top 93%)10317(Top 90%)10317(Top 211%)
20K12.43 mi3.11 mi24847+20010365+9810365+9824306(Top 91%)10091(Top 88%)10091(Top 207%)
Half13.11 mi0.68 mi24844+310368-310368-324836(Top 93%)10402(Top 91%)10402(Top 213%)
25K15.53 mi2.42 mi24770+7410341+2710341+2724441(Top 92%)10198(Top 89%)10198(Top 209%)
30K18.64 mi3.11 mi24737+3310338+310338+324489(Top 92%)10272(Top 90%)10272(Top 210%)
20M20.00 mi1.36 mi24652+8510299+3910299+3923741(Top 89%)9924(Top 87%)9924(Top 203%)
21M21.00 mi1.00 mi24577+7510258+4110258+4123080(Top 87%)9593(Top 84%)9593(Top 196%)
35K21.75 mi0.75 mi24521+5610230+2810230+2822913(Top 86%)9555(Top 84%)9555(Top 196%)
23M23.00 mi1.25 mi24409+11210185+4510185+4522608(Top 85%)9388(Top 82%)9388(Top 192%)
24M24.00 mi1.00 mi24408+110198-1310198-1323989(Top 90%)10159(Top 89%)10159(Top 208%)
40K24.85 mi0.85 mi24385+2310189+910189+923537(Top 88%)9964(Top 87%)9964(Top 204%)
25.2M25.20 mi0.35 mi24361+2410178+1110178+1122332(Top 84%)9310(Top 82%)9310(Top 191%)
Finish26.22 mi1.02 mi24375-1410190-1210190-1224371(Top 92%)10343(Top 91%)10343(Top 212%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21stories
+97ft-345ft

Overall

24747

Females

10317

F18-39

10317

5K→10K

3.1 - 6.2 mi

Top 95%
×5stories
+79ft-138ft

Overall

25287

Females

10601

F18-39

10601

10K→15K

6.2 - 9.3 mi

Top 93%
×3stories
+67ft-78ft

Overall

24747

Females

10317

F18-39

10317

15K→20K

9.3 - 12.4 mi

Top 91%
×5stories
+106ft-86ft

Overall

24306

Females

10091

F18-39

10091

20K→Half

12.4 - 13.1 mi

Top 93%
×2stories
+19ft-37ft

Overall

24836

Females

10402

F18-39

10402

Half→25K

13.1 - 15.5 mi

Top 92%
×4stories
+66ft-88ft

Overall

24441

Females

10198

F18-39

10198

25K→30K

15.5 - 18.6 mi

Top 92%
×9stories
+181ft-148ft

Overall

24489

Females

10272

F18-39

10272

30K→20M

18.6 - 20.0 mi

Top 89%
×5stories
+64ft-50ft

Overall

23741

Females

9924

F18-39

9924

20M→21M

20.0 - 21.0 mi

Top 87%
×8stories
+106ft-24ft

Overall

23080

Females

9593

F18-39

9593

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

22913

Females

9555

F18-39

9555

35K→23M

21.8 - 23.0 mi

Top 85%
×5stories
+23ft-63ft

Overall

22608

Females

9388

F18-39

9388

23M→24M

23.0 - 24.0 mi

Top 90%
×6stories
+12ft-82ft

Overall

23989

Females

10159

F18-39

10159

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

23537

Females

9964

F18-39

9964

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22332

Females

9310

F18-39

9310

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2stories
+22ft-21ft

Overall

24371

Females

10343

F18-39

10343

Passing Analysis

Category:
Athletes Passed
1274
Passed By
513
Net Change
+761
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25136
5K → 10K140216-76#25136#25212
10K → 15K19934+165#25212#25047
15K → 20K22828+200#25047#24847
20K → Half1815+3#24847#24844
Half → 25K11339+74#24844#24770
25K → 30K10572+33#24770#24737
30K → 20M9813+85#24737#24652
20M → 21M816+75#24652#24577
21M → 35K593+56#24577#24521
35K → 23M1186+112#24521#24409
23M → 24M3130+1#24409#24408
24M → 40K3916+23#24408#24385
40K → 25.2M251+24#24385#24361
25.2M → Finish2034-14#24361#24375
TOTALS1274513+761
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing